Vehicle-brake.



Patented Feb. ll, I902.

H. LEMP.

VEHICLE BRAKE. (Application filed July so, 1900.)

2 Sheets-Shaet I.

No Model.)

Inventor? Herm arm Lem m: NORRIS nuns co. we

No. 692,872. I 5 Patefited Feb. ll, I902. H. LEMP. VEHICLE BRAKE.

(Application filed. July so, 1900.)

2 ShaetsSheet 2.

(No Model.)

lhventor Hermann Lamp m: yoams Pawns col Pnotau'ma, wuumawu, a a

,.T all whom it 'm cty concern.

Be it known that LHERMANN LEMP, a citizen of the United States, residing at Lynn, county of Essex, State of Massachusetts, have invented certain new anduseful-lmprove ments in Vehicle-Brakes, (Case no. 1,718,) of

which the following is a='jspec.ification, I

The presentapplica'tio'n is a division ofun y application, Serial No.*l O,385,"filedMarch 27, 1 p 1900, entitled Self-propelled vehicles, and;

is filed'in' accordance lwith the' requirements 1 of the United'States Patent Oflice l well with other types of vehicles. 7

l'is a- Sideelevation ofa'vehicle. Fig. 2 is a I, sectional view of the brake-disk, showing parts of the brake in elevation. Fig. 3 is a view, partially in sectionand partially in plan, of the axle and brake,- the section being taken on line 3 3 of Fig. 2; andFig. 4 isa sectional view showing the support for the brake-band.

Referring to Fig. 1, A represents the steering-wheels, which are mounted on short axles after the manner of the well-known doubleaxle suspensiomand B represents the driving-wheels, mounted on a stationary rear axle 0. Located above the wheel-axles and supported byfour full ellipticsprings D is the frame E, composed of tubing for the body F. The body may be of any desired shape and construction, and. mounted either'on the' UNITED STATES.

HERMANN LEMP, 0F LYNN, MASSACHUSETTS, ASSIGNOR TO ELIH THOMSON,- OF SWAMPSCOTT, MASSACHUSETTS.

-VEHlCLE- BRAKE.

SPECIFICATION forming part of Letters Patent No. 692,872, dated February 11', 1902. Original application filed March 27, 1900, Serial No. 10,385. Divided and this application filed July 30,1900. Serial floured in'place bythe bolto, and menu 4 Theobfectof myin'ven'ition' isto p'royidea l simple and lreliable braking mechanism for vehicles, and is moreparticularlyadapted for. 1 usein connection with vehicles which are self-propelled,alihough itcan be usedeqnally In the accompanying drawings,which illustrate an embodimentof my invention, Figure The foot-lever H is pivotally supported in a y I PATENT OFFI E.

(No model.

.3, the hubof thedriving-wheel is enlarged, and inountedjthereon is a sprocket @{which is retained.iir-placebythe boltQ andthe out (2 Mounted on I the hub in .additionito the,

above an lconcentric with theaxles is a;cup-. shaped or cylindrical casting O,-Whl0l a check-nut 0 serving itohold'the nut plac'e., T.he periphery ofylh'isc'astingist rned ;oif true, and mountedfo'rengagin isa; bafnd-brake-R. The band two]- fseparatelyqnovable parts gcured atone end by them s ve "The upper-half'of the'b s p r the extension R ,;by lchlthe e'nt e'band supported. This extension [isshe'ld in-pla byjthe iuverted-U-sh'aped holders -L',-whie'h g also holdtheleaves of the body-supporting ,elliptic'spring. Theextensio'nlis slotted at R and passing downward through this slot 7o 1-] is aclamping-bolt R By loosening the nut I thereon and also relieving the tension on the spring-holders L the brake-band maybe mm 1 tered or adjusted'around thecnp-shaped cast ing,O,-after which the parts may be readily secured in place. Each part of the band terminates in a head R having acam-surface, R the cam-surfaces'onthe two ends being oppositely disposed' The heads are bored centrally, and passing through the holes is a shaft S, which is provided with cams S, rig idly secured thereto and arranged to engage with the cam su rfaces'onthe head. The holes in the head are slightly tapered, as indicatedby the dotted linesV, so that the brake-band will notbebound in place by the shaftwh'en' the cams are returned to their normal position by the action of the springs or other means.

Located between the, heads and surround-' I ing the shaft is a coiled compression-springgo T for separating the parts of the brake-band, I

and thereby releasing the brake. Secured to the upper end of the shaft S is a lever U for f actuating the brake. This lever is connected by a rod H with the foot-lever H. Fig. 1, and is returned to its normal or inactive position by theextension-spring 'U,the latter being secured to an ear formed on the extensionR suitable hanger carried by the frame E, and too i over, the parts are simple to construct and readily replaced when worn.

What I claim as new, and desire to secure by Letters Patent of the United States, is

1. In combination,a rotary cylindrical member forming a part of a brake mechanism, a second member arranged to engage with the first, a fixed support for the second member,

a cam on said second member, a second 'cam arranged to engage with first, and means for actuating one of the cams.

2. In combination, a cylinder, a band arranged to make frictional engagement therewith, cams'on opposite ends of the band and a rotary cam which is mounted on a shaft and is arranged to operativ'ely engage with the cams'on the band and move the latter into frictional engagement with the cylinder.

3. In combination, a revolving brake-cylinder, a strap arranged to make frictional engagement therewith, pieces having cam-surfaces sccurcd to opposite ends of the strap, a

shaft extending through said pieces and provided with two cams engaging with the camsurfaces, and a spring which normally tends to separate the ends of the strap.

4. In combination, a cup shaped brake member secured to the hub of a wheel, a band arranged for frictional engagement therewith, pieces on opposite ends of the band which are. provided with cam-faces and slightly-tapered holes, a shaft extending through said holes, cams actuated by the shaft for forcing the strap against the cup-shaped brake member, and a means for rotating the shaft.

5. In combination, a wheel having an enlarged hub, a sprocket mounted on said hub, a bolt and friction-nut for retaining the sprocket in place, a cup-shaped brake member which is also mounted on the hub and is secured in place by said bolt and friction-nut.

6. In a vehicle, the combination of supporting-springs, a revolving element for a brake, a two-part strap mounted for engagement therewith, an extension on one part of the strap for supporting it, means for clamping the vehicle-springs and the extension, and means whereby the relative positions of the parts may be adjusted.

In witness WhereofI have set my hand this 26th day of July, 1900. p

I-IERHANN LEMP.

Witnesses:

'DUGALD MCKILLOP,

JOHN MoMANUs. 

